420874430 Fuel Injector for Sea-Doo GTX STD NA 1503 2007

Fuel Injector for Sea-Doo

This fuel injector for Sea-Doo replaces OEM part 420874430, providing accurate fuel delivery for the 1503 engine in the 2007 GTX STD NA and similar models.

Overview

This fuel injector is a direct-fit replacement for the Sea-Doo 1503 engine, engineered to restore proper fuel spray and combustion efficiency. It matches the OEM 420874430 specification used on the 2007 GTX STD NA and other 1503-equipped machines. This injector for Sea-Doo is the right pick when a failed unit causes misfires, rough idle, or lost top-end power.

Built For Performance

• Direct replacement for OEM part number 420874430
• Accurate flow rate matched to factory fueling
• Consistent spray pattern for complete combustion
• Durable body and coil resist heat and fuel exposure
• Fits the 1503 four-stroke engine injector port
• Drop-in installation with no modification needed

Fits These Machines

• for Sea-Doo GTX STD NA 1503 (2007)
• for Sea-Doo models referencing OEM 420874430

On-The-Job Use

• Replacing a clogged or failed injector on the 1503 engine
• Restoring smooth idle and reliable cold starts
• Scheduled maintenance on Sea-Doo personal watercraft
• Shop repairs requiring OEM-matched fuel delivery

Specs At A Glance

Good To Know

Q: How do I know if my injector needs replacing? A: Common signs include rough idle, hesitation under acceleration, misfires, and a strong fuel smell. A diagnostic scan and injector flow test can confirm the fault before you order.

Q: Is this injector sold individually? A: Yes, this listing covers one injector, and the 1503 engine uses one per cylinder. Many owners replace the full set together so all cylinders receive even fueling.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.